On several occasions our team has introduced new setParameters which are intended to be configured only for testing purposes. We do not have an obvious way to enforce, however, that a user who is allowed to run the setParameter command cannot change the parameter in a production environment. There should be a way to add setParameters that can only be changed by authorized users when the server is configured with enableTestCommands=true. This could also help our users distinguish between legitimate knobs that they might want to tune and our internal testing machinery.